China has just entered it's flood season in the Yangtze River Basin and is seeing some of its worst flooding in 80 years. Videos show extreme quantities of water which has inundated 10 provinces and cities and threatens the Three Gorges Dam which has risen two meters above its flood-prevention level.
The Three Gorges Dam is the biggest dam in the world.
This article from Taiwan News contains some good video.
Experts are concerned the Three Gorges Dam is in danger of collapse due to a combination of the volume of rain failing and satellite photo's comparing the dam between 2009 and 2019 that indicate the dam has warped since it's construction.
In this photo you can clearly see the change in the dams shape in 10 years. Something like 40 MILLION people live downstream of the dam.
If you click on this photo and open it up you can see the change in more detail.